A beaming smile of a baby girl just days after her premature birth is lighting up the internet.

The picture - snapped two years ago - was shared recently by a Minnesota woman named Lauren Vinje.

"Our first daughter at five days old. 3 lbs. 14 oz., she was happy to be alive! This picture was one I looked at often to get me through the ups and downs of our NICU days. Life so precious," she wrote.